AAPG Tasch, "Paleozoic/Mesozoic Nonmarine Routes to, from, and across Antarctica: Case Histories" (Gondwana Continents), 1971, Box: 55, Folder: 4. Hollis Hedberg papers, RH MS 546. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/150616 Accessed June 14, 2024.